Genesis G90 2018 - 2021 3.8 T-GDI 370hp

Real standard and upgraded performance figures for the 3.8 T-GDI 370hp engine in the Genesis G90 2018 - 2021.

Standard vs. upgraded performance for the Genesis G90 2018 - 2021 3.8 T-GDI 370hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard370510
Stage 1400610
Stage 2415660
Make
Genesis
Model
G90
Generation
2018 - 2021
Engine
3.8 T-GDI 370hp
Fuel type
petrol

Frequently asked questions

Is Stage 1 tuning safe for the Genesis G90 2018 - 2021 3.8 T-GDI 370hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 3.8 T-GDI 370hp make after tuning?

Standard output is 370 HP / 510 Nm; Stage 1 on this engine typically reaches 400 HP / 610 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Genesis G90 2018 - 2021 3.8 T-GDI 370hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 3.8 T-GDI 370hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.